-
//取得项名称为offset的cookie值
-
function GetCookieVal (offset)
-
{
-
var endstr = document .cookie.indexOf (";" , offset);
-
if (endstr == -1 )
-
endstr = document .cookie.length;
-
return unescape(document .cookie.substring(offset, endstr));
-
}
-
-
//取得名称为name的cookie值
-
function GetCookie (name) {
-
var arg = name + "=" ;
-
var alen = arg.length;
-
var clen = document .cookie.length;
-
var i = 0 ;
-
while (i < clen)
-
{
-
var j = i + alen;
-
if (document .cookie.substring(i, j) == arg)
-
return GetCookieVal (j);
-
i = document .cookie.indexOf(" " , i) + 1 ;
-
if (i == 0 ) break ;
-
}
-
return null;
-
}
-
-
//删除名称为name的Cookie
-
function DeleteCookie (name)
-
{
-
var exp = new Date();
-
exp.setTime (exp.getTime() - 1 );
-
var cval = GetCookie (name);
-
document .cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
-
}
-
-
//清除COOKIE
-
function ClearCookies()
-
{
-
if (confirm('你确定要清空所有COOKIE吗？' ))
-
{
-
var temp=document .cookie.split(";" );
-
var ts;
-
for (var i=0 ;;i++)
-
{
-
if (!temp[i])break ;
-
ts=temp[i].split("=" )[0 ];
-
DeleteCookie(ts);
-
}
-
alert('COOKIE已清除！' );
-
}
-
}
